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// Check -fsanitize=signed-integer-overflow and
// -fsanitize=unsigned-integer-overflow with promoted unsigned types
//
// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -o - %s \
// RUN: -fsanitize=signed-integer-overflow | FileCheck %s --check-prefix=CHECKS
// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -o - %s \
// RUN: -fsanitize=unsigned-integer-overflow | FileCheck %s --check-prefix=CHECKU
unsigned short si, sj, sk;
unsigned char ci, cj, ck;
extern void opaqueshort(unsigned short);
extern void opaquechar(unsigned char);
// CHECKS-LABEL: define void @testshortadd()
// CHECKU-LABEL: define void @testshortadd()
void testshortadd() {
// CHECKS: load i16* @sj
// CHECKS: load i16* @sk
// CHECKS: [[T1:%.*]] = call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 [[T2:%.*]], i32 [[T3:%.*]])
// CHECKS-NEXT: [[T4:%.*]] = extractvalue { i32, i1 } [[T1]], 0
// CHECKS-NEXT: [[T5:%.*]] = extractvalue { i32, i1 } [[T1]], 1
// CHECKS: call void @__ubsan_handle_add_overflow
//
// CHECKU: [[T1:%.*]] = load i16* @sj
// CHECKU: [[T2:%.*]] = zext i16 [[T1]]
// CHECKU: [[T3:%.*]] = load i16* @sk
// CHECKU: [[T4:%.*]] = zext i16 [[T3]]
// CHECKU-NOT: llvm.sadd
// CHECKU-NOT: llvm.uadd
// CHECKU: [[T5:%.*]] = add nsw i32 [[T2]], [[T4]]
si = sj + sk;
}
// CHECKS-LABEL: define void @testshortsub()
// CHECKU-LABEL: define void @testshortsub()
void testshortsub() {
// CHECKS: load i16* @sj
// CHECKS: load i16* @sk
// CHECKS: [[T1:%.*]] = call { i32, i1 } @llvm.ssub.with.overflow.i32(i32 [[T2:%.*]], i32 [[T3:%.*]])
// CHECKS-NEXT: [[T4:%.*]] = extractvalue { i32, i1 } [[T1]], 0
// CHECKS-NEXT: [[T5:%.*]] = extractvalue { i32, i1 } [[T1]], 1
// CHECKS: call void @__ubsan_handle_sub_overflow
//
// CHECKU: [[T1:%.*]] = load i16* @sj
// CHECKU: [[T2:%.*]] = zext i16 [[T1]]
// CHECKU: [[T3:%.*]] = load i16* @sk
// CHECKU: [[T4:%.*]] = zext i16 [[T3]]
// CHECKU-NOT: llvm.ssub
// CHECKU-NOT: llvm.usub
// CHECKU: [[T5:%.*]] = sub nsw i32 [[T2]], [[T4]]
si = sj - sk;
}
// CHECKS-LABEL: define void @testshortmul()
// CHECKU-LABEL: define void @testshortmul()
void testshortmul() {
// CHECKS: load i16* @sj
// CHECKS: load i16* @sk
// CHECKS: [[T1:%.*]] = call { i32, i1 } @llvm.smul.with.overflow.i32(i32 [[T2:%.*]], i32 [[T3:%.*]])
// CHECKS-NEXT: [[T4:%.*]] = extractvalue { i32, i1 } [[T1]], 0
// CHECKS-NEXT: [[T5:%.*]] = extractvalue { i32, i1 } [[T1]], 1
// CHECKS: call void @__ubsan_handle_mul_overflow
//
// CHECKU: [[T1:%.*]] = load i16* @sj
// CHECKU: [[T2:%.*]] = zext i16 [[T1]]
// CHECKU: [[T3:%.*]] = load i16* @sk
// CHECKU: [[T4:%.*]] = zext i16 [[T3]]
// CHECKU-NOT: llvm.smul
// CHECKU-NOT: llvm.umul
// CHECKU: [[T5:%.*]] = mul nsw i32 [[T2]], [[T4]]
si = sj * sk;
}
// CHECKS-LABEL: define void @testcharadd()
// CHECKU-LABEL: define void @testcharadd()
void testcharadd() {
// CHECKS: load i8* @cj
// CHECKS: load i8* @ck
// CHECKS: [[T1:%.*]] = call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 [[T2:%.*]], i32 [[T3:%.*]])
// CHECKS-NEXT: [[T4:%.*]] = extractvalue { i32, i1 } [[T1]], 0
// CHECKS-NEXT: [[T5:%.*]] = extractvalue { i32, i1 } [[T1]], 1
// CHECKS: call void @__ubsan_handle_add_overflow
//
// CHECKU: [[T1:%.*]] = load i8* @cj
// CHECKU: [[T2:%.*]] = zext i8 [[T1]]
// CHECKU: [[T3:%.*]] = load i8* @ck
// CHECKU: [[T4:%.*]] = zext i8 [[T3]]
// CHECKU-NOT: llvm.sadd
// CHECKU-NOT: llvm.uadd
// CHECKU: [[T5:%.*]] = add nsw i32 [[T2]], [[T4]]
ci = cj + ck;
}
// CHECKS-LABEL: define void @testcharsub()
// CHECKU-LABEL: define void @testcharsub()
void testcharsub() {
// CHECKS: load i8* @cj
// CHECKS: load i8* @ck
// CHECKS: [[T1:%.*]] = call { i32, i1 } @llvm.ssub.with.overflow.i32(i32 [[T2:%.*]], i32 [[T3:%.*]])
// CHECKS-NEXT: [[T4:%.*]] = extractvalue { i32, i1 } [[T1]], 0
// CHECKS-NEXT: [[T5:%.*]] = extractvalue { i32, i1 } [[T1]], 1
// CHECKS: call void @__ubsan_handle_sub_overflow
//
// CHECKU: [[T1:%.*]] = load i8* @cj
// CHECKU: [[T2:%.*]] = zext i8 [[T1]]
// CHECKU: [[T3:%.*]] = load i8* @ck
// CHECKU: [[T4:%.*]] = zext i8 [[T3]]
// CHECKU-NOT: llvm.ssub
// CHECKU-NOT: llvm.usub
// CHECKU: [[T5:%.*]] = sub nsw i32 [[T2]], [[T4]]
ci = cj - ck;
}
// CHECKS-LABEL: define void @testcharmul()
// CHECKU-LABEL: define void @testcharmul()
void testcharmul() {
// CHECKS: load i8* @cj
// CHECKS: load i8* @ck
// CHECKS: [[T1:%.*]] = call { i32, i1 } @llvm.smul.with.overflow.i32(i32 [[T2:%.*]], i32 [[T3:%.*]])
// CHECKS-NEXT: [[T4:%.*]] = extractvalue { i32, i1 } [[T1]], 0
// CHECKS-NEXT: [[T5:%.*]] = extractvalue { i32, i1 } [[T1]], 1
// CHECKS: call void @__ubsan_handle_mul_overflow
//
// CHECKU: [[T1:%.*]] = load i8* @cj
// CHECKU: [[T2:%.*]] = zext i8 [[T1]]
// CHECKU: [[T3:%.*]] = load i8* @ck
// CHECKU: [[T4:%.*]] = zext i8 [[T3]]
// CHECKU-NOT: llvm.smul
// CHECKU-NOT: llvm.umul
// CHECKU: [[T5:%.*]] = mul nsw i32 [[T2]], [[T4]]
ci = cj * ck;
}
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